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22648057 = 192431459
BaseRepresentation
bin101011001100…
…1010011111001
31120121122021221
41112121103321
521244214212
62125232041
7363335215
oct126312371
946548257
1022648057
1111869903
127702621
1348cc823
143017945
151ec5807
hex15994f9

22648057 has 12 divisors (see below), whose sum is σ = 24475440. Its totient is φ = 20942712.

The previous prime is 22648051. The next prime is 22648147. The reversal of 22648057 is 75084622.

It is not a de Polignac number, because 22648057 - 215 = 22615289 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22648051) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 14794 + ... + 16252.

It is an arithmetic number, because the mean of its divisors is an integer number (2039620).

Almost surely, 222648057 is an apocalyptic number.

It is an amenable number.

22648057 is a deficient number, since it is larger than the sum of its proper divisors (1827383).

22648057 is a wasteful number, since it uses less digits than its factorization.

22648057 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1540 (or 1521 counting only the distinct ones).

The product of its (nonzero) digits is 26880, while the sum is 34.

The square root of 22648057 is about 4758.9974784612. The cubic root of 22648057 is about 282.9286863475.

The spelling of 22648057 in words is "twenty-two million, six hundred forty-eight thousand, fifty-seven".

Divisors: 1 19 43 361 817 1459 15523 27721 62737 526699 1192003 22648057